25 ideas
3695 | Philosophy is a priori if it is anything [Bonjour] |
3651 | Perceiving necessary connections is the essence of reasoning [Bonjour] |
3700 | Coherence can't be validated by appeal to coherence [Bonjour] |
13733 | Frege considered definite descriptions to be genuine singular terms [Frege, by Fitting/Mendelsohn] |
9874 | Contradiction arises from Frege's substitutional account of second-order quantification [Dummett on Frege] |
10245 | One geometry cannot be more true than another [Poincaré] |
18252 | Real numbers are ratios of quantities, such as lengths or masses [Frege] |
18271 | We can't prove everything, but we can spell out the unproved, so that foundations are clear [Frege] |
10623 | Frege defined number in terms of extensions of concepts, but needed Basic Law V to explain extensions [Frege, by Hale/Wright] |
9975 | Frege ignored Cantor's warning that a cardinal set is not just a concept-extension [Tait on Frege] |
18165 | My Basic Law V is a law of pure logic [Frege] |
3697 | The concept of possibility is prior to that of necessity [Bonjour] |
3704 | Moderate rationalists believe in fallible a priori justification [Bonjour] |
3707 | Our rules of thought can only be judged by pure rational insight [Bonjour] |
3696 | A priori justification requires understanding but no experience [Bonjour] |
3703 | You can't explain away a priori justification as analyticity, and you can't totally give it up [Bonjour] |
3706 | A priori justification can vary in degree [Bonjour] |
3699 | The induction problem blocks any attempted proof of physical statements [Bonjour] |
3701 | Externalist theories of justification don't require believers to have reasons for their beliefs [Bonjour] |
3702 | Externalism means we have no reason to believe, which is strong scepticism [Bonjour] |
3709 | Induction must go beyond the evidence, in order to explain why the evidence occurred [Bonjour] |
3708 | All thought represents either properties or indexicals [Bonjour] |
9190 | A concept is a function mapping objects onto truth-values, if they fall under the concept [Frege, by Dummett] |
13665 | Frege took the study of concepts to be part of logic [Frege, by Shapiro] |
3698 | Indeterminacy of translation is actually indeterminacy of meaning and belief [Bonjour] |